The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-317-2278, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-317-2278 |
| Primary Part Number | 803-5959174 PIECE 441 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shank Diameter | 0.750 INCHES NOMINAL IN |
| Second Shank Diameter | 0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN |
| Undercut Width | 0.250 INCHES NOMINAL IN |
| First End Taper Length | 0.062 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Hole Arrangement Style | ONE END DRILLED |
| Thread Length | 0.750 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.250 INCHES NOMINAL IN |
| Shank Length | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B139 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Shoulder Diameter | 1.497 INCHES MINIMUM AND 1.503 INCHES MAXIMUM IN |
| Second Shank Length | 3.000 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | COPPER ALLOY 510 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Centerline of Hole to End of Pin | 1.125 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 803-5959174 PIECE 441 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5315-01-317-2278 is a Pin,shoulder,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-317-2278 has 1 manufacturer part number on file: 803-5959174 PIECE 441 (Naval Sea Systems Command).
Key specifications for 803-5959174 PIECE 441: Shank Diameter: 0.750 INCHES NOMINAL IN; Second Shank Diameter: 0.998 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN; Undercut Width: 0.250 INCHES NOMINAL IN; First End Taper Length: 0.062 INCHES NOMINAL IN. 22 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.